Artificial silk spinning machine



March 19, 1935. c. o. BUTLER ARTIFICIAL SILK SPINNING MACH INE Filed July 6, 1953 2 Sheets-Sheet 1 Cyrus OBuZI ZZ WW MMW I March 19, 1935. c. o. BUTLER 1,994,556

ARTIFICIAL SILK SPINNING MACHINE Filed July 6, 1933 2 Sheets-Sheet 2 clmw Patented Mar. 19, 1935 r 1,994,566 Y a ARTIFICIALSILK SPINNING MACHINE Cyrus 0. Butler, Kingsport; Tcnn., assignor. to Eastman Kodak Company, Rochester, N. Ya, a corporation of New-York 1 Application'July 6, 1933, Serial No. 679,183

'7 Claims.

This invention relates to the artof Spinning artificial silk and particularly'to the provision of a suitable thread guides in such machines. One object of my invention is to :provide a silk spinning machine in which the thread guides normally located inside of the cabinet are readily accessible for inspection and cleaning from the outsideof the cabinet. ."Another object of my invention is to provide an artificial silk spinning-machine'with a thread exit which will not damage the thread and which is substantially gas-tight. Anotherobject of my-invention isto provide thread guides with means fordirecting thread into the thread guides to facilitate the threading operation. Another object of my invention is to provide aspinning machine with threadguides and with means for directing thread to the guideathese means being in the form of guideways which are readily'accessible for'threading the machine butwhich are ren-Q dered inoperative when the-machine is in position tooperate. Still another object of my invention is to 'provide-a machine which can be quickly and easily threaded and other objects will appear from the following specification the novel features being particularly pointedoutin the claims at the end thereof. Coming now tothe'drawings'wherein like ref ere'nce; characters denote like parts throughout;

Fig. 1 is a sideele'vation shown partially in section of atypical spinning machine having thread guides constructed in accordance with and'embodying a preferred form of my inven tion; Fig. 2 is an enlarged sectional 'view partially inelevation showingaportion' of the spinning machine illustrated in Fig. 1;

I Fig. 3 is a fragmentary front elevation of a portion of 'the machineshown in Fig. 1;

Fig. 4 is a top plan'view of one of the film guidesflused in amachine constructed in accordance with my inventionj. h V V r Fig. 5 is ,afrontJelevation ofa second film guideconstru'cted in accordance with my invention and also illustratingthethread guide brackat and the means ioridirecting thread to the uide; 1 I v Fig. 6 is aside elevation partially in section of thethread guide shown in; Fig.5; I

'Whilecertain features of my invention may be applied to machines employing thread guides of various different types, the'invention is particularly adapted for use on a spinning machine and accordingly 1 as a preferred. embodiment vof. my

this belt driving the bobbin 10 through the pulley 11.

' which receives the dope from which the artificial silk is made, this dope being pumpedto the spin? neret by a suitable pump 16." .The spinneret may be of any wellknowntype preferably containing a multiplicity oi minute holes; each 'of which produces asingl'e filament or strand of thread which may be twisted into a single strand 16. 1 It is customary with amachine ortnis' type to circulate "air or gas through the cabinet 13 and accordingly warmair may be' admitted through the duct 17 so as to pass upwardly through'the cabinet 13 and so that it may be withdrawn from the cabinet through a second duct ;18. I jf Ordinarily a plurality of these machines are arranged together adjacent to each other'on a single frame. p a l After the thread 16" asbeen forced out of the spinneret 15 and drawn through the chamber 13 so thatthe solvent vapors may be' evaporated and drawnoif, itis necessary to pass the thread out through an exit from the chamber 13. Since the solvent vapors are usually circulated and'recovered, it is desirable to have as little opening through the cabinet 13' to the outside or the cabinet as is possible because it is'desira'ble to prevent hot air or gas from escaping outside of the cabinet and it is undesirable to permit out} side air to be drawn into the cabinetf At the same time, the thread is delicate andprovision has to be'made towithdraw thethread frointhe cabinet without marring or breaking it. 1"

I haveprovided forlthis purpose the structure shown in Figs. 2 to6, inclusive, in which the exit opening for the filament 16 from the cabinet '13 is in the form of a very small aperture36 through which the thread passes. The thread is guided through this aperture without. having contact with it by a pair of guides. Film guidey20, as shown in Fig. 4. may consist of a U-shaped piece The shaft 7 may support an idlc' pulley -la L The second thread guide 3 l is preferably sup ported by a bracket 32, being. soldered thereto at 32'. Like thread guide 20, I have formed. 31 0fpiano wire since this material forms an idealsurface for guiding the delicate thread. The

bracket 32 is preferably carried-by the edge" 33' of the door frame 28 and may be attached in a rabbet 34 therein by means of screw 35 as indic'ated: in-Fig.. 6; .It willbenoted here: that the rabbet is of the same depth as the thickness of the bracket 32 so:that it-' will lieflushxwith the front surface of the'doorframe-23'and so-that the door gasket Bdmay make a' tight connection therewith.

It shouldbe also noted'tli'at the 'thread-guide 31 is carried on theback of the bracket 32'when-looking at the frontof the cabinetFig. l, an'd'that' there is a small rounded opening 36 in the-bracket which lies at the end of a guideway 37 formed by slotting the bracket- 322 On the opposite side of the bracket from the thread guide-31 the metal is cut away at: 38 so; that thehole 36 extends through only ai thin part of' the bracket. This; of course, reducesthe liabilityof the thread from comingin contact with anything but the wire guide 31'.

' It should be noted: thatthe-door' 24 is-likewise provided with a slot 39, this slot-terminatingin a rounding end? 40': of somewhat larger diameter than: the opening 36. The slot" 39 -formsa second guideway for directing thread in the: proper position in initially threading the: machine and'it that. is;.they lie in-a non-parallel relation.

should? be'particularly noted: that the slot 39 of the door and the" slot 3 7- of the bracket- 32 are angularlydisposed with 4 respect to each other- The reason-for this is that when the door isclosed there is only a-very' smallopening extended into the cabinet, the aperture 3 6 and a small: portion of theslot-3'Z: However, whenethe dooris: swung open for threading the machine itis a= simple matter to direct the thread through slot 3 '7" to the aperture 36: so that it will contact with the w-ireguide 3 1- and: to passithe thread up through the slot 39,. after which-the door may be closed.

With the constructionabove described itw-ill be evident that a substantially gas-tight connection ismade between the'door and-thecabinetl3 and that there is only an extremely small opening through: which the thread is guided in its exit from the cabinet.- Itshould be noted that in passing fromthe cabinet thethread touches only the wire guides 20 and 31 and since after the thread-leavesthe guide 31 it passesover the usual type of feed roll- 45 to a thread guide; 46; from which it balloonsabout-the cap 4'7 being wound on the revolving bobbin 1%) in the usualmanner.

There are'anumber of advantagesin providing thread guides which are readily accessible from theoutsidezof the'cabin'et; It will be noted that the guide 20a's above described is carried by the bracket 23 which is 'mounted directly on the door 24. Consequently, when the door 24 is swung: in the direction shown by e the arrow: in

Fig. 2 about its hinged pintle 26 the thread guide 20 is likewise swung through the door frame into a position in which it can be readily inspected and cleaned. Moreover, it is a simple matter to replace worn thread guides 20 by merely releasing the screw 48 and withdrawing the ends 21" of the piano wire from their support enabling a '7 new guide. to be-placed in position l V The necessity. for inspection ofiti'iis guide is occasioned by the fact that the yarn may at Dope may drop from tach itself to the .guide. the top of the cabinet when the sprockets are being worked omorchanged and, of ,coursathe guide itself,v in-time may become worn. With theguid'e 20 mounted on the door his a quick and-easy: matter to swing the guide out of the cabinet intoa position in which it may be either readily" cleaned orreplaced.

The second guide 31- is also readily accessible i V from the outside of the'cabinet .by' swinging the door 24 open since the'nbracket 32 fits' intdra rabbet 34 and." is held in position :by. a isingle screw 35'. This bracket can: be readiiy' mmoved, and replaced-by a new one if necessary; "However, it is usually only necessary to cleanthe: thread guide l and this can be readily-rdonewwhen the door is open withoutremoving'thebracket Not only-are the two brackets-with their: thread guides readily. accessible by means of the-door,

construction but the machine is anaextremely easy one to thread quickly. When the thread 16: is

started from the' spinneret 15; and. reaches-the bottom of the cabinet afterhaving through" the: counter currentv flow ofa hot ain item the duct 17 to the duct'18 in theusuali manner the door may belquickly opened 5 and. the; guided over the guide 20, passed up: through-the slot 3'7 so as to be directed to the guide iihaml then the door may be: closed, thathread beina passed-through. the door. slot-39. Thisioperation can be very quickly andvery :easily: performed so that thereis very little change inthe-temperg ture of ,thercabinet 13'. The'thread 16 is then passed over the feed; roll-- 45 and is attached; the bobbin 10; v

While itis obvious: that-changes'may be from the construction.v shown the preierred embodiment-o1 my invention-shownin ings: and while my improved threadiguides; can be applied tothe otherrtypes of artificial silk spinning machines, I contemplate as within the scope of my invention. allsuch modificatiopseas may come within the scope ofethe appended claims. 1 What I claim as my invention andvdesire: to

combination with a casing, of aspinneret mount. ed therein, a door in-said cabinet, and a. thread guide located inside of the casing. directlybe 2. In a spinning" cabinet r artificial silki 't he combination with a'casing; of aspinneret mountbe'secured by Letters Patentofthe United-Stams 1. In aspinning cabinet the I ed therein, adoor in said cabinet havinganopeiring therethrough, a thread guide mounted: in

said door, a second thread guide mountedcnaj frame for the door, and adjacent said"door"opening whereby said second thread guid nmyi with the door form-a substantially gas'tight opening through which said 'thread-may-pass;

r 3. In a spinning. c'abinet for artificial: combination with. a; casinggof a spimieret-m'olut ed therein, a door in said cabinet having an opening therethrough, a thread guide mounted in said door, a second thread guide mounted on a frame for the door, and adjacent said door opening whereby said second thread guide may with the door form a substantially gas tight opening through which said thread may pass and angularly disposed walls on the second thread guide and door to facilitate threading the thread guide.

4. In a spinning cabinet for artificial silk, the combination with a casing, of a spinneret mounted therein, a door in said cabinet having an opening therethrough, a thread guide mounted in said door, a second thread guide mounted on a frame for the door, and adjacent said door opening whereby said second thread guide may with the door form a} substantially gas tight opening through which said thread, may pass and angularlydisposed walls on the second thread guide and door to facilitate threading the thread guide, the angularly disposed walls on the second thread guide and door being positioned at difierent angles whereby the opening between the two walls is of small size.

5. In a spinning machine for artificial silk the combination with a casing, of a spinneret mounted in one end of said casing, a slotted door in the opposite end of said casing, means for withdrawing thread from said casing and through said door including a pair of thread guides, one

carried by said door, and the other carried by said cabinet adjacent said door, whereby both of said thread guides may be accessible for inspection by opening said door.

6. In a spinning machine for artificial silk the combination with a casing, of a spinneret mounted in one end of said casing, aslotted door in the opposite end of said casing, means for withdrawing thread from said casing and through said door including a pair of thread guides, one carried by said door, and the other carried by said cabinet adjacent said door, supporting brackets for said thread guides, means for positioning thread in said film guides, said means being so located with respect to said door that the said means is accessible for threading said guides only when said door is open.

,7 In a machine for spinning artificial silk, the combination with a cabinet of a spinneret mounted'therein at one end of the cabinet, a door mounted in the other end of the cabinet, a thread guide carried by the door and located directly be-' neath the spinneret, a thread guide bracket mounted in the cabinet adjacent the door, means carried by the bracket for positioning thread in the thread guide, and means included in said door for rendering the means for positioning thread inoperative when said door is closed.

CYRUS O. BUTLER. 

